- Corporate Officers - W
- Whitmore Bradford T
Insider Trading History of Whitmore Bradford T
The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) of Whitmore Bradford T since 2016.
This trader's CIK number is 933430.
At the time of last reporting, Whitmore Bradford T was the Director of Ultralife Corp. (stock ticker symbol ULBI).
Also see all insider trading activities at Ultralife Corp.
Note that in the past
WHITMORE BRADFORD T also reported insider trading activities as an insider of the following companies:
Yearly summary of insider trading at Clearside Biomedical, Inc. (CLSD) by Whitmore Bradford T
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2024 | CLSD | 444,444 | $599,999 | 0 | $0 | 0 | $0 |
| 2023 | CLSD | 135,778 | $99,850 | 0 | $0 | 0 | $0 |
| 2021 | CLSD | 350,750 | $999,988 | 420,285 | $2,920,278 | 0 | $0 |
| 2020 | CLSD | 517,095 | $881,385 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Nanophase Technologies Corp (NANX) by Whitmore Bradford T
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2024 | NANX | 3,824,864 | $1,529,945 | 0 | $0 | 0 | $0 |
| 2023 | NANX | 169,137 | $154,457 | 0 | $0 | 0 | $0 |
| 2022 | NANX | 311,953 | $398,331 | 0 | $0 | 0 | $0 |
| 2021 | NANX | 7,731,573 | $32,364,364 | 7,731,573 | $32,364,364 | 0 | $0 |
| 2019 | NANX | 4,189,000 | $1,675,600 | 0 | $0 | 0 | $0 |
| 2017 | NANX | 2,500,000 | $1,000,000 | 0 | $0 | 0 | $0 |
| 2016 | NANX | 2,758,406 | $1,072,823 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Ultralife Corp (ULBI) by Whitmore Bradford T
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2025 | ULBI | 107,804 | $676,755 | 0 | $0 | 0 | $0 |
| 2023 | ULBI | 245,161 | $1,311,600 | 0 | $0 | 0 | $0 |
| 2022 | ULBI | 284,298 | $1,275,079 | 0 | $0 | 0 | $0 |
| 2021 | ULBI | 78,451 | $495,882 | 0 | $0 | 0 | $0 |
| 2020 | ULBI | 175,000 | $1,208,774 | 0 | $0 | 0 | $0 |
| 2017 | ULBI | 61,572 | $322,168 | 0 | $0 | 0 | $0 |
| 2016 | ULBI | 133,092 | $556,210 | 0 | $0 | 0 | $0 |
Insider trading activities at 3 companies by Whitmore Bradford T:
1. Clearside Biomedical, Inc. (CLSD)
2. Nanophase Technologies Corp (NANX)
3. Ultralife Corp (ULBI)
Table 1. Insider trading of Clearside Biomedical, Inc. (CLSD) by Whitmore Bradford T
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2024-02-07 | CLSD | Buy | 444,444 | 1.35 | 599,999 |
| 2023-10-31 | CLSD | Buy | 70,812 | .73 | 51,551 |
| 2023-10-30 | CLSD | Buy | 600 | .69 | 411 |
| 2023-11-01 | CLSD | Buy | 64,366 | .74 | 47,888 |
| 2021-09-01 | CLSD | Sale | 213,203 | 6.89 | 1,469,181 |
| 2021-08-30 | CLSD | Sale | 99,400 | 7.06 | 702,062 |
| 2021-08-31 | CLSD | Sale | 107,682 | 6.96 | 749,035 |
| 2021-01-06 | CLSD | Buy | 350,750 | 2.85 | 999,988 |
| 2020-12-24 | CLSD | Buy | 51,195 | 1.95 | 99,881 |
| 2020-12-02 | CLSD | Buy | 53,900 | 1.95 | 105,051 |
| 2020-11-16 | CLSD | Buy | 62,000 | 1.69 | 104,904 |
| 2020-08-12 | CLSD | Buy | 300,000 | 1.63 | 488,999 |
| 2020-08-13 | CLSD | Buy | 50,000 | 1.65 | 82,550 |
Table 2. Insider trading of Nanophase Technologies Corp (NANX) by Whitmore Bradford T
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2024-02-08 | NANX | Buy | 3,824,864 | .40 | 1,529,945 |
| 2023-08-21 | NANX | Buy | 44,198 | .92 | 40,617 |
| 2023-08-22 | NANX | Buy | 39,549 | .91 | 35,950 |
| 2023-08-23 | NANX | Buy | 2,100 | 1.12 | 2,343 |
| 2023-05-31 | NANX | Buy | 7,700 | 1.18 | 9,078 |
| 2023-05-30 | NANX | Buy | 8,200 | 1.18 | 9,643 |
| 2023-06-01 | NANX | Buy | 500 | 1.21 | 602 |
| 2023-05-17 | NANX | Buy | 53,040 | .77 | 40,946 |
| 2023-05-18 | NANX | Buy | 8,200 | 1.04 | 8,544 |
| 2023-05-19 | NANX | Buy | 5,650 | 1.19 | 6,734 |
| 2022-12-08 | NANX | Buy | 92,000 | 1.16 | 106,996 |
| 2022-12-07 | NANX | Buy | 450 | 1.17 | 526 |
| 2022-12-06 | NANX | Buy | 86,318 | 1.22 | 105,307 |
| 2022-11-16 | NANX | Buy | 12,625 | 1.40 | 17,662 |
| 2022-11-17 | NANX | Buy | 47,160 | 1.38 | 65,080 |
| 2022-11-18 | NANX | Buy | 73,400 | 1.40 | 102,760 |
| 2021-12-21 | NANX | Sale | 7,731,573 | 4.19 | 32,364,364 |
| 2021-12-21 | NANX | Buy | 7,731,573 | 4.19 | 32,364,364 |
| 2019-05-13 | NANX | Buy | 4,189,000 | .40 | 1,675,600 |
| 2017-12-19 | NANX | Buy | 2,500,000 | .40 | 1,000,000 |
| 2016-11-11 | NANX | Buy | 32,678 | .63 | 20,717 |
| 2016-06-07 | NANX | Buy | 30,200 | .55 | 16,459 |
| 2016-05-31 | NANX | Buy | 5,013 | .51 | 2,531 |
| 2016-06-01 | NANX | Buy | 4,835 | .51 | 2,441 |
| 2016-06-02 | NANX | Buy | 10,200 | .51 | 5,191 |
| 2016-05-10 | NANX | Buy | 2,500 | .51 | 1,262 |
| 2016-05-05 | NANX | Buy | 250 | .50 | 125 |
| 2016-05-02 | NANX | Buy | 20,877 | .49 | 10,167 |
| 2016-05-03 | NANX | Buy | 36,342 | .49 | 17,989 |
| 2016-05-04 | NANX | Buy | 15,511 | .51 | 7,941 |
| 2016-02-10 | NANX | Buy | 2,600,000 | .38 | 988,000 |
Table 3. Insider trading of Ultralife Corp (ULBI) by Whitmore Bradford T
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2025-08-19 | ULBI | Buy | 15,898 | 6.57 | 104,370 |
| 2025-08-20 | ULBI | Buy | 13,000 | 6.57 | 85,423 |
| 2025-08-21 | ULBI | Buy | 29,766 | 6.63 | 197,318 |
| 2025-06-13 | ULBI | Buy | 10,000 | 7.64 | 76,390 |
| 2025-05-23 | ULBI | Buy | 11,980 | 5.41 | 64,775 |
| 2025-05-15 | ULBI | Buy | 2,140 | 5.72 | 12,234 |
| 2025-05-14 | ULBI | Buy | 16,063 | 5.47 | 87,896 |
| 2025-05-13 | ULBI | Buy | 8,957 | 5.40 | 48,349 |
| 2023-12-08 | ULBI | Buy | 7,000 | 7.19 | 50,337 |
| 2023-12-06 | ULBI | Buy | 8,877 | 6.83 | 60,603 |
| 2023-11-27 | ULBI | Buy | 3,200 | 7.12 | 22,784 |
| 2023-11-28 | ULBI | Buy | 11,160 | 7.08 | 79,023 |
| 2023-11-29 | ULBI | Buy | 10,740 | 7.34 | 78,842 |
| 2023-10-31 | ULBI | Buy | 2,600 | 7.37 | 19,159 |
| 2023-10-30 | ULBI | Buy | 10,171 | 7.04 | 71,563 |
| 2023-11-01 | ULBI | Buy | 1,100 | 7.51 | 8,266 |
| 2023-09-13 | ULBI | Buy | 5,659 | 10.02 | 56,708 |
| 2023-09-15 | ULBI | Buy | 3,741 | 10.25 | 38,348 |
| 2023-09-14 | ULBI | Buy | 1,600 | 10.35 | 16,556 |
| 2023-06-14 | ULBI | Buy | 33,797 | 4.97 | 167,869 |
| 2023-06-13 | ULBI | Buy | 33,400 | 5.00 | 166,933 |
| 2023-06-12 | ULBI | Buy | 13,401 | 4.72 | 63,306 |
| 2023-06-02 | ULBI | Buy | 5,964 | 4.40 | 26,241 |
| 2023-05-31 | ULBI | Buy | 7,216 | 4.28 | 30,884 |
| 2023-05-30 | ULBI | Buy | 6,500 | 4.29 | 27,904 |
| 2023-06-01 | ULBI | Buy | 20,247 | 4.33 | 87,608 |
| 2023-05-11 | ULBI | Buy | 20,256 | 4.08 | 82,644 |
| 2023-05-10 | ULBI | Buy | 3,979 | 4.03 | 16,047 |
| 2023-05-09 | ULBI | Buy | 4,553 | 3.97 | 18,084 |
| 2023-03-09 | ULBI | Buy | 5,562 | 4.07 | 22,642 |
| 2023-03-10 | ULBI | Buy | 10,100 | 4.05 | 40,894 |
| 2023-03-13 | ULBI | Buy | 14,338 | 4.07 | 58,355 |
| 2022-12-16 | ULBI | Buy | 7,200 | 3.98 | 28,684 |
| 2022-12-15 | ULBI | Buy | 5,138 | 3.94 | 20,248 |
| 2022-12-14 | ULBI | Buy | 25,694 | 4.01 | 103,032 |
| 2022-12-08 | ULBI | Buy | 28,600 | 4.12 | 117,832 |
| 2022-12-07 | ULBI | Buy | 19,600 | 3.97 | 77,772 |
| 2022-12-06 | ULBI | Buy | 20,996 | 3.96 | 83,144 |
| 2022-08-17 | ULBI | Buy | 16,400 | 4.60 | 75,423 |
| 2022-08-18 | ULBI | Buy | 17,700 | 4.64 | 82,216 |
| 2022-08-02 | ULBI | Buy | 30,848 | 4.60 | 141,900 |
| 2022-08-03 | ULBI | Buy | 29,100 | 4.68 | 136,333 |
| 2022-08-04 | ULBI | Buy | 40,052 | 4.72 | 189,245 |
| 2022-06-06 | ULBI | Buy | 12,280 | 4.86 | 59,693 |
| 2022-06-08 | ULBI | Buy | 30,690 | 5.20 | 159,557 |
| 2021-12-17 | ULBI | Buy | 53,251 | 5.57 | 296,608 |
| 2021-08-02 | ULBI | Buy | 5,113 | 7.95 | 40,653 |
| 2021-08-03 | ULBI | Buy | 12,400 | 7.85 | 97,364 |
| 2021-08-04 | ULBI | Buy | 7,687 | 7.97 | 61,257 |
| 2020-05-14 | ULBI | Buy | 5,000 | 7.43 | 37,145 |
| 2020-05-11 | ULBI | Buy | 1,379 | 8.30 | 11,445 |
| 2020-05-08 | ULBI | Buy | 3,800 | 8.18 | 31,076 |
| 2020-05-07 | ULBI | Buy | 3,631 | 8.05 | 29,240 |
| 2020-05-04 | ULBI | Buy | 5,534 | 7.64 | 42,290 |
| 2020-05-05 | ULBI | Buy | 2,978 | 8.38 | 24,964 |
| 2020-05-06 | ULBI | Buy | 2,678 | 8.36 | 22,393 |
| 2020-03-13 | ULBI | Buy | 15,972 | 5.69 | 90,816 |
| 2020-03-16 | ULBI | Buy | 1,703 | 5.23 | 8,913 |
| 2020-03-17 | ULBI | Buy | 32,325 | 5.78 | 186,773 |
| 2020-02-18 | ULBI | Buy | 41,155 | 7.35 | 302,448 |
| 2020-02-19 | ULBI | Buy | 58,845 | 7.16 | 421,271 |
| 2017-02-24 | ULBI | Buy | 12,934 | 5.41 | 69,947 |
| 2017-02-13 | ULBI | Buy | 42,569 | 5.15 | 219,145 |
| 2017-02-14 | ULBI | Buy | 6,069 | 5.45 | 33,076 |
| 2016-11-15 | ULBI | Buy | 12,407 | 4.22 | 52,419 |
| 2016-11-11 | ULBI | Buy | 20,700 | 4.24 | 87,768 |
| 2016-09-09 | ULBI | Buy | 50,000 | 4.13 | 206,750 |
| 2016-08-02 | ULBI | Buy | 18,683 | 4.05 | 75,759 |
| 2016-08-03 | ULBI | Buy | 4,126 | 4.24 | 17,473 |
| 2016-08-04 | ULBI | Buy | 27,176 | 4.27 | 116,041 |
Insider trading activities including stock purchases, stock sales, and option exercises
listed in the above table cannot be completely guaranteed as to their accuracy.
For more information regarding the trades made by Whitmore Bradford T
(Director of Ultralife Corp at the time of this reporting) see
the Securities and Exchange Commission (SEC) website.